Steve Stedman

sql server steve stedman tsql 70-461 insert subquery update delete select sql queries iff choose function getdate query output upsert merge derived table correlated subquery outut except derived tables union common table espression emergency reporting aaron buma subqueries cte intersect set operators percentile_cont top dense_rank rank lag over first_value percent_rank lead percentile_disc row_number cume_dist last_value ntile aggregation